I think they already did that. Wasn't the LT1 around that price? And that sold a ton I believe. Ditch the 4 and 6 cylinder and make a "LT" base model wit the V8 engine, make the RS package an option as before. Then make the 1SS and 2SS with RS package as standard like before. I've seen enough...
They should get rid of the 4 and 6 cylinder and replace with smaller more economic V8 like what Dodge did with the 5.7. Like a 5.3L with 400HP as the base model